Step 1 :Calculate Daniel's monthly commission based on his sales: \(commission1 = 30000 * 0.077 = 2310\) and \(commission2 = (43000 - 30000) * 0.136 = 1768\)
Step 2 :Add his monthly salary and commission to find his total monthly income: \(total\_monthly\_income = 2020 + 2310 + 1768 = 6098\)
Step 3 :Multiply his total monthly income by 12 to find his annual salary: \(annual\_salary = 6098 * 12 = 73176\)
Step 4 :\(\boxed{73176}\)